diff -r 000000000000 -r 6474c204b198 content/media/omx/mediaresourcemanager/MediaResourceManagerService.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/content/media/omx/mediaresourcemanager/MediaResourceManagerService.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,147 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:set ts=2 sw=2 sts=2 et cindent: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "MediaResourceManagerService"
+
+#include <binder/IServiceManager.h>
+#include <media/stagefright/foundation/AMessage.h>
+#include <utils/Log.h>
+
+#include "MediaResourceManagerClient.h"
+#include "MediaResourceManagerService.h"
+
+namespace android {
+
+/* static */
+void MediaResourceManagerService::instantiate() {
+  defaultServiceManager()->addService(
+            String16("media.resource_manager"), new MediaResourceManagerService());
+}
+
+MediaResourceManagerService::MediaResourceManagerService()
+  : mVideoDecoderCount(VIDEO_DECODER_COUNT)
+{
+  mLooper = new ALooper;
+  mLooper->setName("MediaResourceManagerService");
+
+  mReflector = new AHandlerReflector<MediaResourceManagerService>(this);
+  // Register AMessage handler to ALooper.
+  mLooper->registerHandler(mReflector);
+  // Start ALooper thread.
+  mLooper->start();
+}
+
+MediaResourceManagerService::~MediaResourceManagerService()
+{
+  // Unregister AMessage handler from ALooper.
+  mLooper->unregisterHandler(mReflector->id());
+  // Stop ALooper thread.
+  mLooper->stop();
+}
+
+void MediaResourceManagerService::binderDied(const wp<IBinder>& who)
+{
+  if (who != NULL) {
+    Mutex::Autolock autoLock(mLock);
+    sp<IBinder> binder = who.promote();
+    if (binder != NULL) {
+      cancelClientLocked(binder);
+    }
+  }
+}
+
+void MediaResourceManagerService::requestMediaResource(const sp<IMediaResourceManagerClient>& client, int resourceType)
+{
+  if (resourceType != MediaResourceManagerClient::HW_VIDEO_DECODER) {
+    // Support only HW_VIDEO_DECODER
+    return;
+  }
+
+  {
+    Mutex::Autolock autoLock(mLock);
+    sp<IBinder> binder = client->asBinder();
+    mVideoCodecRequestQueue.push_back(binder);
+    binder->linkToDeath(this);
+  }
+
+  sp<AMessage> notify =
+            new AMessage(kNotifyRequest, mReflector->id());
+  // Post AMessage to MediaResourceManagerService via ALooper.
+  notify->post();
+}
+
+status_t MediaResourceManagerService::cancelClient(const sp<IMediaResourceManagerClient>& client)
+{
+  {
+    Mutex::Autolock autoLock(mLock);
+    sp<IBinder> binder = client->asBinder();
+    cancelClientLocked(binder);
+  }
+
+  sp<AMessage> notify =
+            new AMessage(kNotifyRequest, mReflector->id());
+  // Post AMessage to MediaResourceManagerService via ALooper.
+  notify->post();
+
+  return NO_ERROR;
+}
+
+// Called on ALooper thread.
+void MediaResourceManagerService::onMessageReceived(const sp<AMessage> &msg)
+{
+  Mutex::Autolock autoLock(mLock);
+
+  // Exit if no request.
+  if (mVideoCodecRequestQueue.empty()) {
+    return;
+  }
+
+  // Check if resource is available
+  int found = -1;
+  for (int i=0 ; i<mVideoDecoderCount ; i++) {
+    if (!mVideoDecoderSlots[i].mClient.get()) {
+      found = i;
+    }
+  }
+
+  // Exit if no resource is available.
+  if (found == -1) {
+    return;
+  }
+
+  // Assign resource to IMediaResourceManagerClient
+  Fifo::iterator front(mVideoCodecRequestQueue.begin());
+  mVideoDecoderSlots[found].mClient = *front;
+  mVideoCodecRequestQueue.erase(front);
+  // Notify resource assignment to the client.
+  sp<IMediaResourceManagerClient> client = interface_cast<IMediaResourceManagerClient>(mVideoDecoderSlots[found].mClient);
+  client->statusChanged(MediaResourceManagerClient::CLIENT_STATE_RESOURCE_ASSIGNED);
+}
+
+void MediaResourceManagerService::cancelClientLocked(const sp<IBinder>& binder)
+{
+  // Clear the request from request queue.
+  Fifo::iterator it(mVideoCodecRequestQueue.begin());
+  while (it != mVideoCodecRequestQueue.end()) {
+    if ((*it).get() == binder.get()) {
+      mVideoCodecRequestQueue.erase(it);
+      break;
+    }
+    it++;
+  }
+
+  // Clear the client from the resource
+  for (int i=0 ; i<mVideoDecoderCount ; i++) {
+    if (mVideoDecoderSlots[i].mClient.get() == binder.get()) {
+      mVideoDecoderSlots[i].mClient = NULL;
+    }
+  }
+  binder->unlinkToDeath(this);
+}
+
+}; // namespace android
+